Create library with essential Groove interfaces

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Such a library can be used seamlessly with external programs, such as compilers and converters

Reported by: rensink

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• priority: 5 --> 6

Original comment by: rensink

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• assigned_to: nobody --> stokkink

Original comment by: rensink

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• priority: 6 --> 4
• assigned_to: stokkink --> nobody

Original comment by: rensink

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• assigned_to: nobody --> zambon

Original comment by: rensink

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• assigned_to: zambon --> nobody

Original comment by: rensink

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• Group: --> None

Original comment by: rensink